When the skeletons of four young women are found buried in woodland North of Copenhagen,DCI Katrine Ries Jensen and Thomas Schaeffer, are drawn into a hunt for a serial killer.

Katrine finds herself in grave danger. The police race against time to find the serial killer.

When a family is found murdered in their home, DCI Katrine Ries Jensen investigates with the help of Thomas Schaeffer.

Another family has been kidnapped and held prisoner in their home. In a sadistic game, the killer forces the kidnapped wife and child to role-play his own family.

A seventeen-year-old who is detained in one of Denmark's largest prisons is abused and killed. For Katrine Ries Jensen, it will be a meeting with a past she would rather forget and therefor she decides to attack the system.

Under intense pressure, Katrine and Thomas Schaeffer struggle to track down the perpetrator in a place where violence and revenge are rife.